With Coupling Network Or Impedance In The Leadin Patents (Class 343/850)
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Patent number: 8284115Abstract: The present invention provides an apparatus for coupling a radio communication device to a host system. The apparatus comprises a housing including a counterpoise operatively coupled to the radio communication device. The apparatus also comprises a signal pathway operatively coupling the radio communication device to the host system. The apparatus thereby provides a counterpoise for the radio communication device which is external to both the host system and the radio communication device.Type: GrantFiled: February 27, 2009Date of Patent: October 9, 2012Assignee: Sierra Wireless, Inc.Inventors: Paul A. Nysen, Kevin Wolentarski, Pedro A. Gutierrez, Chih-Chuan Yen, Todd Van Cleave
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Publication number: 20120249394Abstract: Aspects of a method and system for configurable antenna in an integrated circuit package are provided. In this regard, a phased array antenna embedded in a multi-layer integrated circuit (IC) package may be utilized for transmitting and/or receiving signals. An IC enabled to transmit and/or receive signals may be bonded to the multi-layer IC package and may communicate a reference signal and/or one or more phase shifted versions of said reference signal to the antenna. One or more phase shifters (fabricated, for example, in planar transmission line) may be embedded in the multi-layer IC package and may be controlled via an IC bonded to the multi-layer IC package. The phased array antenna may comprise a plurality of antenna elements which may each comprise an interconnection for communicatively coupling to an associated transmitter and/or receiver, a feeder line, a quarter wavelength transformer, and a radiating portion (e.g., a folded dipole).Type: ApplicationFiled: June 7, 2012Publication date: October 4, 2012Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 8269671Abstract: A radio-frequency integrated circuit chip package has N integrated patch antennas, N being at least one. The package includes a cover portion with N generally planar patches, and a main portion coupled to the cover portion. The main portion in turn includes at least one generally planar ground plane spaced inwardly from the N generally planar patches and parallel thereto. The ground plane is formed without any coupling apertures therein. The main portion also includes N feed lines spaced inwardly from the N generally planar patches and parallel thereto, and spaced outwardly from the generally planar ground plane and parallel thereto. Furthermore, the main portion includes at least one radio frequency chip coupled to the feed lines and the ground plane. The cover portion and the main portion cooperatively define an antenna cavity, and the N generally planar patches and the chip are located in the antenna cavity. The package is formed without reflectors. Fabrication techniques are also described.Type: GrantFiled: January 27, 2009Date of Patent: September 18, 2012Assignees: International Business Machines Corporation, Media TekInventors: Ho Chung Chen, Brian A. Floyd, Duixian Liu
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Patent number: 8269686Abstract: An antenna includes a waveguide having an aperture at a first end and a conducting component at a second end, the conducting component shorting the waveguide and a first set of two orthogonal dipoles, fed in quadrature, the orthogonal dipoles located near the aperture of the waveguide operating close to its dominant mode cut off frequency.Type: GrantFiled: November 26, 2008Date of Patent: September 18, 2012Assignee: UTI Limited PartnershipInventors: Ronald H. Johnston, Elise Fear
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Patent number: 8270912Abstract: Aspects of a method and system for a transformer in an integrated circuit package are provided. In this regard, signals may be transmitted and/or received via an antenna communicatively coupled to a transformer embedded in multi-layer integrated circuit package. The windings ratio of the transformer may be configured based on an impedance of the antenna, an impedance of a transmitter coupled to the transformer, an impedance of an LNA coupled to the transformer, and/or a power level of the received and/or transmitted signals. The windings ratio may be configured via one or more switching elements which may be MEMS switches embedded in the multi-layer IC package. The transformer may comprise a plurality of loops fabricated on a corresponding plurality of metal layers in the multi-layer IC package, and the loops may be communicatively coupled with one or more vias. The multi-layer IC package may comprise ferromagnetic and/or ferromagnetic materials.Type: GrantFiled: December 12, 2007Date of Patent: September 18, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Publication number: 20120229360Abstract: An indirect-fed antenna system is disclosed. In an embodiment, a coupler is electrically coupled to a feed. The coupler capacitively couples to a resonating element and the resonating element is electrically coupled to a ground plane. The system allows for improved band-width and also allows for an antenna design where the resonant frequency, the bandwidth of the antenna, the location of the curl on a Smith chart and the associated impendence matching network can be separately adjusted.Type: ApplicationFiled: September 7, 2010Publication date: September 13, 2012Applicant: Molex IncorporatedInventors: Ole Jagielski, Simon Svendsen
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Patent number: 8258957Abstract: A transponder that may be used as an RFID tag includes a passive circuit to eliminate the need for an “always on” active RF receiving element to anticipate a wake-up signal for the balance of the transponder electronics. This solution allows the entire active transponder to have all circuit elements in a sleep (standby) state, thus drastically extending battery life or other charge storage device life. Also, a wake-up solution that reduces total energy consumption of an active transponder system by allowing all non-addressed transponders to remain in a sleep (standby) state, thereby reducing total system or collection energy. Also, the transponder and wake-up solution are employed in an asset tracking system.Type: GrantFiled: August 17, 2011Date of Patent: September 4, 2012Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Marlin H. Mickle, Alex K. Jones, James T. Cain, Peter J. Hawrylak, Frank Marx, Raymond R. Hoare
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Patent number: 8253647Abstract: A high isolation multi-band monopole antenna that can be used in connection with MIMO systems is provided. The antenna can include various components to prevent band to band coupling and provide isolation from neighboring antennas.Type: GrantFiled: February 8, 2010Date of Patent: August 28, 2012Assignee: PC-Tel, Inc.Inventors: Kevin Le, Jesse Lin
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Publication number: 20120212388Abstract: A device for receiving and/or emitting an electromagnetic wave having a free space wavelength ?0 comprised between 1 mm and 10 cm, comprising a medium (11) of solid dielectric material and the free space wavelength ?0 corresponding to a wavelength ? inside the medium, a plurality of conductor elements (12) incorporated inside the medium and spaced apart from each other of a distance lower than ?/10, and one antenna element (13). The conductor elements form small loop elements. A tuned conductor element among the conductor elements has a first end at a distance from the antenna element which is lower than ?/10, and has an electric resonance frequency corresponding to the wavelength ?.Type: ApplicationFiled: November 9, 2010Publication date: August 23, 2012Applicants: Centre National De La Recherche Scientifique - CNRS, Time Reversal CommunicationsInventors: Julien De Rosny, Geoffroy Lerosey, Arnaud Tourrin, Mathias Fink, Fabrice Lemoult
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Publication number: 20120212386Abstract: The present invention provides a dielectric resonator antenna comprising: a dielectric resonator; a ground plane, operatively coupled with the dielectric resonator, the ground plane having four slots; and a substrate, operatively coupled to the ground plane, having a feeding network consisting of four microstrip lines; wherein the four slots are constructed and geometrically arranged to ensure proper circular polarization and coupling to the dielectric resonator; and wherein the antenna feeding network combines the four microstrip lines with a 90 degree phase difference to generate circular polarization over a wide frequency band.Type: ApplicationFiled: February 21, 2011Publication date: August 23, 2012Applicant: Her Majesty the Queen in Right of Canada as represented by the Minister of National DefenceInventors: Gabriel Massie, Mathieu Caillet, Michel Clenet, Yahia M.M. Antar
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Publication number: 20120212387Abstract: A coaxial resonator includes a dielectric block; a first inner conductor disposed in an inner surface of a first through hole which extends from a first main surface of the dielectric block to an opposite second main surface thereof, the first inner conductor being connected to a reference potential at one side thereof; and an outer conductor disposed over side surfaces of the dielectric block, the outer conductor surrounding the first inner conductor, the outer conductor being connected to the reference potential. There is a low-dielectric-constant portion in a location between the first inner conductor and the outer conductor. The low-dielectric-constant portion surrounds a periphery of the first inner conductor and is lower in dielectric constant than the dielectric block.Type: ApplicationFiled: September 29, 2010Publication date: August 23, 2012Applicant: KYOCERA CORPORATIONInventors: Masafumi Horiuchi, Hiromichi Yoshikawa, Katsuro Nakamata, Soutarou Kukita
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Publication number: 20120206302Abstract: A chassis-excited antenna apparatus, and methods of tuning and utilizing the same. In one embodiment, a distributed loop antenna configuration is used within a handheld mobile device (e.g., cellular telephone). The antenna comprises two radiating elements: one configured to operate in a high-frequency band, and the other in a low-frequency band. The two antenna elements are disposed on different side surfaces of the metal chassis of the portable device; e.g., on the opposing sides of the device enclosure. Each antenna component comprises a radiator and an insulating cover. The radiator is coupled to a device feed via a feed conductor and a ground point. A portion of the feed conductor is disposed with the radiator to facilitate forming of the coupled loop resonator structure.Type: ApplicationFiled: February 11, 2011Publication date: August 16, 2012Inventors: Prasadh Ramachandran, Petteri Annamaa
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Patent number: 8238824Abstract: A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.Type: GrantFiled: January 12, 2011Date of Patent: August 7, 2012Assignee: Sony CorporationInventor: Takanori Washiro
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Patent number: 8228257Abstract: A broadband antenna system is disclosed. The antenna system relates to a modified conical structure, wherein the feed region of the cone is cut away to form a hollow “coneless” cylinder, and the distribution of one or more tapered feed points around the circumference of the cylinder allows a plurality of feed lines, cables, piping, or other structures to be run through the center of the antenna without interfering with the performance of the antenna system. The invention further relates to a stacked broadband antenna system wherein additional coneless elements, as well as other types of antennas or devices, may be stacked collinearly on, or disposed coaxially to, the cylindrical antenna structure, and fed, powered or operated via the plurality of feed lines, cables, piping or other structures. The overall system may thus provide a wide range of transmitting, receiving, sensing and other capabilities.Type: GrantFiled: March 20, 2009Date of Patent: July 24, 2012Assignee: FIRST RF CorporationInventor: Farzin Lalezari
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Publication number: 20120182176Abstract: An electromagnetic reflector includes an antenna that receives an incoming signal and that transmits an outgoing signal. A three-port device, such as a circulator, has a first port electromagnetically coupled to the antenna. An RF circuit has an input that is electromagnetically coupled to the second port of the three-port device and an output that is electromagnetically coupled to the third port of the three-port device. The RF circuit changes at least one of a gain and a phase of the incoming signal to generate a desired outgoing signal that passes through the three-port device to the antenna.Type: ApplicationFiled: January 19, 2011Publication date: July 19, 2012Applicant: PHOTONIC SYSTEMS, INC.Inventors: David Paul Maunder, Charles H. Cox, III, David Morgan Kettner, Kevin M. Cuomo
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Publication number: 20120162042Abstract: The present invention discloses a wireless device. The wireless device includes a housing, formed by a metal material, a wireless module disposed inside the housing, and an antenna, disposed outside the housing, coupled to the wireless module via a external socket interface disposed on the housing, for transmitting and receiving signals corresponding to the wireless module.Type: ApplicationFiled: March 17, 2011Publication date: June 28, 2012Inventors: Min-Chung Wu, Shao-Chin Lo
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Patent number: 8200168Abstract: A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of antenna elements that, in response to an antenna configuration signal, are configured elements into at least one antenna. The configurable antenna interface module is coupled to the at least one antenna and, based on an antenna interface control signal, provides at least one of an impedance matching circuit and a bandpass filter. The control module is coupled to generate the antenna configuration signal and the antenna interface control signal in accordance with a first frequency band and a second frequency band such that the at least one antenna facilitates at least one of transmitting and receiving a first RF signal within the first frequency band and facilitates at least one of transmitting and receiving a second RF signal within the second frequency band.Type: GrantFiled: August 23, 2011Date of Patent: June 12, 2012Assignee: Broadcom CorporationInventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran
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Publication number: 20120139811Abstract: An antenna subsystem includes an antenna and a radio frequency (RF) feed structure. The antenna subsystem includes a signal layer, a ground plane layer, and a middle layer arranged therebetween. The RF feed includes a substrate, a port, and a conductive layer. The port is arranged and configured for selective coupling with a transmission line. A conductive layer includes a first portion electrically connected to the port, which transfers an RF signal between the transmission line and a signal layer. The conductive layer also includes a second portion electrically connected to the port, which electrically couples a ground conductor of the transmission line to the ground plane.Type: ApplicationFiled: December 6, 2011Publication date: June 7, 2012Applicant: Seeonic, Inc.Inventor: Nicholas F. Singh
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Publication number: 20120139710Abstract: Provided are a method, system, and device in which non-RF (radio frequency) data signals are transmitted to a non-RF data port connected to an antenna of a device. The non-RF data signals from the non-RF data port are coupled to a data bus using a low frequency coupler of the device. RF signals are blocked from the data bus using the low frequency coupler of the device. In another aspect, RF signals are transmitted to the antenna of the device and are coupled to an RF port using a high frequency coupler of the device. Non-RF data signals are blocked from the RF port using the high frequency coupler. Additional embodiments are described and claimed.Type: ApplicationFiled: February 13, 2012Publication date: June 7, 2012Inventor: Jeremy BURR
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Publication number: 20120139810Abstract: An antenna system includes a multi-port antenna with an active feeding network coupled thereto. The active feeding network applies complex weights to signals received from and transmitted to each port of the multi-port antenna. The complex weights are applied according to eigenvectors corresponding to a Hermitian matrix representation of the multi-port antenna. The Hermitian matrix may be base on such multi-port antenna parameters such as power dissipation, power radiation, real-power flow, volumetric storage of electromagnetic energy, and/or volumetric dissipation of electromagnetic energy. The multi-port antenna yields orthogonal electromagnetic fields in volumes or surfaces of interest in response to the active feeding network excitation.Type: ApplicationFiled: December 7, 2010Publication date: June 7, 2012Applicant: Motorola, Inc.Inventors: Antonio Faraone, Carlo DiNallo, Renato Cicchetti
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Publication number: 20120127055Abstract: An antenna device includes a feed element being of a length that allows resonance in a specified frequency band, a distributed constant feed line grounded at one end and coupled at another end to the feed element to form a feeding point, a reactive element grounded at one end and coupled at another end to a position a specified distance from the feeding point of the feed line, a first switch disposed between the feed line and the reactive element and used to select whether the feed line and the reactive element are coupled or uncoupled, a parasitic element disposed adjacent to the feed element and being of a length that allows resonance in a frequency band different from the frequency band in which the feed element resonates, and a second switch used to select whether the parasitic element is grounded.Type: ApplicationFiled: August 11, 2011Publication date: May 24, 2012Applicant: FUJITSU LIMITEDInventor: Takashi YAMAGAJO
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Patent number: 8185062Abstract: A configurable antenna assembly includes an antenna structure and a configurable antenna interface. The antenna structure is operable, in a first mode, to provide a first antenna structure and a second antenna structure, wherein the first antenna structure receives an inbound radio frequency (RF) signal and the second antenna structure transmits an outbound RF signal. The configurable antenna interface is operable in the first mode to provide a first antenna interface and a second antenna interface, wherein the first antenna interface is configured in accordance with a receive adjust signal to adjust at least one of phase and amplitude of the inbound RF signal, and wherein the second antenna interface is configured in accordance with a transmit adjust signal to adjust at least one of phase and amplitude of the outbound RF signal.Type: GrantFiled: March 28, 2011Date of Patent: May 22, 2012Assignee: Broadcom CorporationInventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran
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Patent number: 8184056Abstract: The invention provides apparatuses for a radial constrained lens in a steerable directional antenna system. The radial constrained lens includes a feed array that excites a continuous radiating aperture through a section of radial waveguide. Feed elements of the feed array are coupled to a feed network that processes a signal for each of the active feed elements. A feed array may include a plurality of feed probes or a plurality of waveguide sections. A sector, which includes a contiguous subset of feed elements, may be configured by a switching arrangement either in a transmit mode or a receive mode. The radial constrained lens may be commutated about a full 360 degree aperture view. Also, a plurality of radial constrained lens may be vertically stacked so that a scanned beam may be adjusted both in an azimuth and elevation directions.Type: GrantFiled: April 20, 2007Date of Patent: May 22, 2012Assignee: Science Applications International CorporationInventor: Thomas Miles
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Publication number: 20120119962Abstract: The invention includes a first circuit board on which a plurality of first terminal sections is arranged, a high-frequency circuit arranged on the first circuit board and connected to at least one of the plurality of first terminal sections, a second circuit board on which is arranged a plurality of second terminal sections facing the plurality of first terminal sections, a first internal circuit arranged on the second circuit board and connected to at least one of the plurality of second terminal sections, and electrical continuity unit providing electrical continuity among the plurality of first terminal sections and the plurality of second terminal sections. At least two contiguous terminals of the plurality of first terminal sections and/or the plurality of second terminal sections including a terminal connected to the high-frequency circuit are connected via a capacitor and function as an antenna for wireless communication.Type: ApplicationFiled: November 14, 2011Publication date: May 17, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Michio IRIE
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Publication number: 20120105298Abstract: A configuration that reduces a parasitic capacitance between wires is achieved at a low cost. Disclosed is an acoustic wave filter provided with a piezoelectric substrate 1, resonators 2a and 2b that include a comb-shaped electrode formed on the piezoelectric substrate 1, a wiring portion 3 that is connected to the comb-shaped electrode, and a dielectric layer 4 formed to cover the comb-shaped electrode. The wiring portion 3 is provided with a lower layer wiring portion 3d that is disposed in the same layer as the comb-shaped electrode and an upper layer wiring portion 3e that is disposed on the lower layer wiring portion 3d. The upper layer wiring portion 3e includes a region that has a wider electrode width than the electrode width of the lower layer wiring portion 3d.Type: ApplicationFiled: January 5, 2012Publication date: May 3, 2012Applicant: TAIYO YUDEN CO., LTD.Inventors: Kazunori Inoue, Takashi Matsuda, Michio Miura
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Patent number: 8164538Abstract: One or more embodiments are directed to a multimode antenna structure for transmitting and receiving electromagnetic signals in a communications device. The communications device includes circuitry for processing signals communicated to and from the antenna structure. The antenna structure is configured for optimal operation in a given frequency range. The antenna structure includes a plurality of antenna ports operatively coupled to the circuitry, and a plurality of antenna elements, each operatively coupled to a different one of the antenna ports. Each of the plurality of antenna elements is configured to have an electrical length selected to provide optimal operation within the given frequency range. The antenna structure also includes one or more connecting elements electrically connecting the antenna elements such that electrical currents on one antenna element flow to a connected neighboring antenna element and generally bypass the antenna port coupled to the neighboring antenna element.Type: GrantFiled: March 30, 2010Date of Patent: April 24, 2012Assignee: SkyCross, Inc.Inventors: Mark T. Montgomery, Frank M. Caimi, Mark W. Kishler
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Patent number: 8159408Abstract: Methods and systems for reducing AM/PM and AM/AM distortion are disclosed and may comprise selectively coupling and impedance matching one of a plurality of tunable antennas to a single programmable output stage comprising a single power amplifier in a transmitter. A programmable matching circuit comprising adjustable inductance and capacitance may be used to impedance match the antenna to the output stage. The selected tunable antenna may be coupled to the output stage utilizing a programmable switch array, which may comprise at least one transistor integrated on an integrated circuit including the output stage, for example. The tunable antennas may be designed to operate in different frequency bands and to be tuned within one or more frequency bands. The programmable matching circuit may be integrated on the chip or external to the chip. The matching circuit capacitance may be integrated on-chip, and the inductance may be located off-chip.Type: GrantFiled: January 4, 2011Date of Patent: April 17, 2012Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 8154469Abstract: In accordance with an embodiment, a radio frequency transition system includes a stripline trace section with openings in ground planes and forms a quarter wavelength resonator and an electromagnetic mechanism to couple the RF energy from the stripline trace section to a connector, wherein the RF signal energy is transferred from inside a beam forming network printed wiring board to an a back side of a phased array antenna system with minimal RF losses. An RF transition system is disclosed. The RF transition system comprises a stripline trace section with openings in ground planes and forms a quarter-wavelength resonator. The RF transition system further includes an electromagnetic mechanism to couple the RF energy from the stripline trace section to a connector. The RF signal energy is transferred from inside a beam forming network printed wiring board to an a back side of a phased array antenna system with minimal RF losses.Type: GrantFiled: June 22, 2007Date of Patent: April 10, 2012Assignee: The Boeing CompanyInventors: Chris D. McKinley, Ming Chen, John B. O'Connell
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Patent number: 8144071Abstract: A quad-band antenna device (10) for a portable radio communication device comprises two radiating elements (12, 14) of different lengths and two common conductors (18, 20) of different lengths. One of the common conductors can be selectively connected in and out with respect to radio frequency signals in order to adjust the total electrical length of the antenna device, thereby making it operable in four different frequency bands.Type: GrantFiled: May 18, 2007Date of Patent: March 27, 2012Inventor: Anders Thornell-Pers
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Patent number: 8138924Abstract: A strain-resistant electrical connection and a method of making the same is provided. An antenna (36, 38) or other conductive lead is connected to a circuit (32) in a manner that makes the connection more resistant to mechanical stresses such as movement or rotation of the antenna (36, 38) or conductive lead relative to the circuit (32). The antenna (36, 38) or conductive lead is at least partially coiled to provide additional ability to withstand mechanical stresses. The antenna (36, 38) or conductive lead may be encase along with is connected circuit in an elastomeric material.Type: GrantFiled: March 9, 2005Date of Patent: March 20, 2012Assignee: Michelin Recherche Et TechniqueInventors: Jay C. Sinnett, Cameron E. Smith, John David Adamson
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Patent number: 8125404Abstract: A monopole antenna includes a base board having a first side and a second side, a grounding element attached on the first side of the base board, a coupling element attached on the first side of the base board and being spaced apart from the grounding element, and a radiating element connected to the coupling element and exposed out the base board.Type: GrantFiled: April 21, 2009Date of Patent: February 28, 2012Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Shang-Jen Chen, Lung-Sheng Tai, Chun-Ming Chiu, Shu-Yean Wang
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Publication number: 20120044121Abstract: An antenna including a ground plane region, a feed element having associated with it a first reactance and a coupling element having associated with it a second reactance, the second reactance being of opposite sign to the first reactance, the coupling element being coupled to the feed element and to the ground plane region and being located in close proximity to the ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on the first and second reactances.Type: ApplicationFiled: April 7, 2010Publication date: February 23, 2012Applicant: GALTRONICS CORPORATION LTD.Inventors: Steve Krupa, Snir Azulay
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Patent number: 8120536Abstract: A dual polarized antenna element having improved antenna isolation is disclosed by the present invention. The antenna element includes a first feeder for feeding the antenna element in a first polarization direction, and a second feeder for feeding the antenna element in a second polarization direction. According to the present invention, a compensation line is arranged between the first and the second feeders for compensating for an imbalance caused by an essentially capacitive coupling between the first and second feeders. The compensation line is connected to the first and second feeders in close proximity to a radiating part of said antenna element, and has a short electrical length ? and a high impedance relative to an impedance of the first and second feeders, respectively, thereby giving the compensation line an essentially inductive character.Type: GrantFiled: April 10, 2009Date of Patent: February 21, 2012Assignee: Powerwave Technologies Sweden ABInventor: Bjorn Lindmark
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Publication number: 20120032867Abstract: A waveguide orthomode transducer, comprises: a junction having a main waveguide and four auxiliary waveguides lying along the two orthogonal main axis of the junction and defining four quadrants; a combination network comprising: two magic tees, each having an E-port, two opposed common-ports, and a H-port; an H-plane tee junction having a ?-port and two opposed common-ports; and an E-plane tee junction having a ?-port and two opposed common-ports. Two auxiliary waveguides define a first quadrant are respectively connected to the common-ports of one of the magic tees and the two other secondary waveguides defining a second quadrant opposite to the first quadrant are connected to the common-ports of the other magic tee. The tee junctions are used to connect similar magic tee ports so that the transducer separates towards two different outputs two orthogonally polarized signals entering at the main waveguide.Type: ApplicationFiled: February 1, 2010Publication date: February 9, 2012Applicant: CENTRE NATIONAL D'ETUDES SPATIALESInventor: Nelson Fonseca
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Publication number: 20120032868Abstract: An antenna system for a downhole tool has an antenna that is configured to operate at a plurality of frequencies. The tuning circuit is on the interior of the tool and shielded from borehole fluids. The tuning circuit is coupled to the antenna by a transformer circuit.Type: ApplicationFiled: October 3, 2011Publication date: February 9, 2012Applicant: Baker Hughes IncorporatedInventors: John Signorelli, Samuel Bell, Tsili Wang, Roland Edward Chemali, Sheng Fang
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Patent number: 8111198Abstract: An object of the present invention is to prevent electrical characteristics of circuit elements from being adversely affected by copper diffusion in a semiconductor device having an integrated circuit and an antenna formed over the same substrate, which uses copper plating for the antenna. Another object is to prevent a defect of a semiconductor device due to poor connection between an antenna and an integrated circuit in a semiconductor device having the integrated circuit and the antenna formed over the same substrate. In a semiconductor device having an integrated circuit 100 and an antenna 101 formed over one substrate 102, when a copper plating layer 108 is used for a conductor of the antenna 101, it is possible to prevent copper diffusion to circuit elements and decrease an adverse effect on electrical characteristics of circuit elements due to the copper diffusion because a base layer 107 of the antenna 101 uses a nitride film of a predetermined metal.Type: GrantFiled: July 2, 2010Date of Patent: February 7, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kazuya Hanaoka, Hideto Ohnuma, Teruyuki Fujii
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Patent number: 8106848Abstract: A programmable antenna includes a fixed antenna element and a programmable antenna element that is tunable in response to at least one antenna control signal, wherein tuning the programmable antenna element changes an impedance of the antenna. A programmable impedance matching network is tunable in response in response to at least one matching network control signal to adjust for the changes in the impedance of the antenna.Type: GrantFiled: February 7, 2011Date of Patent: January 31, 2012Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 8102329Abstract: In one embodiment, an integrated circuit antenna array is provided that includes: a low-voltage substrate supporting an RF transmission network, and a high-voltage substrate bonded to the low-voltage substrate, the high-voltage substrate supporting a plurality of antennas coupled to the RF transmission network through switch-mode power amplifiers integrated into a surface of the high voltage substrate.Type: GrantFiled: December 21, 2010Date of Patent: January 24, 2012Inventor: Farrokh Mohamadi
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Publication number: 20120001821Abstract: There is provided an antenna device which has a structure using control lines of an integrated circuit as a portion of an emitting electrode so as to prevent electromagnetic coupling between the emitting electrode and the control lines, and thereby prevent the occurrence of unnecessary resonance and deteriorations in antenna characteristics. Also there is provided a wireless communication device of the same. The antenna device includes at least one emitting electrode and an other emitting electrode provided with the control lines. Connection circuits are provided between the control lines and the other emitting electrode to allow an RF signal of the emitting electrode to flow to the control lines such that the other emitting electrode and the control lines function as a single emitting electrode.Type: ApplicationFiled: September 16, 2011Publication date: January 5, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Shinichi NAKANO, Kazunari KAWAHATA, Hiroshi NISHIDA, Kenichi ISHIZUKA
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Patent number: 8089421Abstract: A dielectrically loaded multifilar antenna has an electrically insulative solid core bearing an antenna element structure having four pairs of substantially helical radiating elements spaced apart around a central axis of the antenna. Each pair of oppositely located antenna elements forms part of a conductive loop having an effective electrical length in the region of N guide wavelengths at the operating frequency, where N is an integer and is at least 2. Typically, each helical element executes substantially a full turn around the axis on the outer surface of the core. The antenna offers an improved gain-bandwidth product compared with typical prior dielectrically loaded multifilar helical antennas, and a 3 dB beamwidth of at least 90° for circularly polarized radiation.Type: GrantFiled: May 13, 2009Date of Patent: January 3, 2012Assignee: Sarantel LimitedInventors: Oliver Paul Leisten, Nicholas Roger Padfield
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Patent number: 8081121Abstract: An article having an electromagnetic coupling module attached thereto includes an electromagnetic coupling module and a PET bottle having the electromagnetic coupling module bonded thereto. The electromagnetic coupling module includes a wireless IC chip arranged to process transmission and reception signals and the feed circuit board having the wireless IC chip mounted thereon. The feed circuit board includes a feed circuit including a resonant circuit having a predetermined resonant frequency. The feed circuit performs characteristic impedance matching between the PET bottle and the wireless IC chip. The PET bottle functions as a radiator arranged to radiate a transmission signal supplied from the feed circuit using electromagnetic field coupling and to supply a received reception signal to the feed circuit using electromagnetic field coupling.Type: GrantFiled: March 11, 2009Date of Patent: December 20, 2011Assignee: Murata Manufacturing Co., Ltd.Inventors: Noboru Kato, Yuya Dokai, Nobuo Ikemoto
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Patent number: 8081115Abstract: An exemplary apparatus providing an antenna for radiating electromagnetic energy is disclosed as having: a first dielectric substrate having opposite first and second surfaces, a patch of conducting material disposed on the first surface, a ground plane of conducting material disposed of the second surface, at least three input means coupled to a plurality of microstrip feed lines wherein the microstrip feed lines have an aspect ratio suitably configured to maximize antenna bandwidth. Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve and/or modify the performance characteristics of the antenna. Exemplary embodiments of the present invention generally provide an antenna for providing wideband power combining and wideband radiation functions.Type: GrantFiled: November 15, 2007Date of Patent: December 20, 2011Assignee: Raytheon CompanyInventors: David Crouch, William E. Dolash
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Patent number: 8081119Abstract: A product includes a power supply circuit board, which includes a power supply circuit having a stable frequency characteristic which enables communication among various products to be obtained. The product includes a power supply circuit board including a power supply circuit arranged thereon having an inductance element, and a wireless communication circuit board electrically connected to the power supply circuit. The wireless communication circuit board is mounted on the power supply circuit board. The product further includes a radiation plate which emits a transmission signal which is supplied from the power supply circuit through electromagnetic field coupling and which has a frequency substantially determined in accordance with a resonant frequency of the power supply circuit, and which is used to supply a reception signal to the power supply circuit through electromagnetic field coupling.Type: GrantFiled: September 22, 2008Date of Patent: December 20, 2011Assignee: Murata Manufacturing Co., Ltd.Inventors: Noboru Kato, Ikuhei Kimura
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Patent number: 8081127Abstract: The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to form a space therebetween. The distance between the ground portion and the radial portion is defined as a transceiver unit height. The dielectric unit is disposed in the space. That is, the dielectric unit is disposed between the ground portion and the radial portion. The dielectric unit has a dielectric unit thickness less than the transceiver unit height. In one embodiment, the ratio of the dielectric unit thickness to the transceiver unit height is preferably between 0.4 and 0.7.Type: GrantFiled: March 17, 2009Date of Patent: December 20, 2011Assignee: Wistron Corp.Inventors: Yin-Yu Chen, Chen-Yu Chou, Ming-Feng Tsai, Chih-Wei Lee
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Patent number: 8072284Abstract: A split delay-line oscillator for secure data transmission is disclosed. In one embodiment, an apparatus for a split delay-line oscillator for secure data transmission includes a first modulator/demodulator block in a first device, the first modulator/demodulator block operable to insert a first variable delay to modulate a frequency of a shared carrier signal passing through the first modulator/demodulator block, and a second modulator/demodulator block in a second device, the second modulator/demodulator block operable to insert a second variable delay to modulate the frequency of the shared carrier signal passing through the second modulator/demodulator block, wherein the first and second devices create a shared secret by contributing data on the frequency-modulated shared carrier signal.Type: GrantFiled: March 30, 2009Date of Patent: December 6, 2011Assignee: Ricoh Co., Ltd.Inventors: Stephen Savitzky, Sergey Chemishkian, Bradley Rhodes
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Patent number: 8072335Abstract: An antenna assembly is provided suitable for use with a remote communications module such as, for example, a keyless entry module, a tire pressure monitoring module, etc. The antenna assembly generally includes a support, a folded metallic antenna element mounted on the support, an amplifier coupled to the folded antenna element, and a transmission line coupled to the amplifier.Type: GrantFiled: April 9, 2009Date of Patent: December 6, 2011Assignee: Laird Technologies, Inc.Inventors: Ayman Duzdar, Haiyang Wang, Huzefa Abdulkader Bharmal, Joseph M. Combi
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Publication number: 20110279340Abstract: An antenna for a wireless IC device having improved energy transfer efficiency with a wireless IC, and a wireless IC device equipped with the antenna are constructed such that the antenna includes a coil pattern and spiral coupling patterns provided at the ends of the coil pattern and disposed so as to face each other. A coupling module including a wireless IC chip and a feeder circuit substrate including a feeder circuit arranged to be coupled to the wireless IC chip is mounted on the coupling pattern so as to define a wireless IC device. The coil pattern is an open type coil pattern. The coupling patterns are arranged close to each other to define a single LC resonator. Thus, energy is concentrated in the coupling patterns, thereby improving the energy transfer efficiency between the antenna and the wireless IC chip.Type: ApplicationFiled: July 26, 2011Publication date: November 17, 2011Applicant: Murata Manufacturing Co., Ltd.Inventors: Noboru KATO, Jun SASAKI, Teppei MIURA, Naoki GOUCHI
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DEVICE FOR SUPPORTING, HOUSING AND COOLING RADIANT MODULES OF AN ANTENNA, PARTICULARLY ARRAY ANTENNA
Publication number: 20110279343Abstract: The present invention relates to a device (1) for supporting, housing and cooling radiant modules (2) of an antenna, comprising a plate (3) for cooling said radiant modules (2) that can be fixed to means for supporting said antenna, said plate (3) having an upper surface and a lower surface; characterized in that it comprises a plurality of projecting guides (5) provided at least on one of said surfaces of said plate (3), so that each pair of said projecting guides (5) adjacent with surface on which are provided realize housing seats (6), in each one of which one of said radiant modules (2) is introduced; and pressing means (7, 15, 16, 17), integrated with said projecting guides (5), apt exerting a pressure on said radiant modules (2) so as to obtain a substantially uniform coupling between each of them and the surface of said plate (3) on which said projecting guides (5) are provided. The invention further relates to an array antenna.Type: ApplicationFiled: July 18, 2008Publication date: November 17, 2011Applicant: Selex Sistemi Integrati S.p.A.Inventors: Andrea Giovannelli, Francesca Masala -
Publication number: 20110273353Abstract: A wireless device having a CRLH antenna structure incorporates a meander line at the feed and adds a three dimensional conductive structure to shift a meander mode resonance frequency.Type: ApplicationFiled: March 4, 2011Publication date: November 10, 2011Inventors: Maha Achour, Ajay Gummalla, Vaneet Pathak
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Publication number: 20110267244Abstract: This application relates to a multi-functional Composite Right and Left Handed CRLH antenna device. A conductive element of a wireless device is incorporated into the antenna structure for reuse. In one embodiment a peripheral feature, such as a key dome, is incorporated into the antenna device. In this way, the antenna structure includes portions which are multi-functional.Type: ApplicationFiled: March 2, 2011Publication date: November 3, 2011Inventors: Sunil Kumar Rajgopal, Ajay Gummalla, Cheng Jung Lee, Vaneet Pathak